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參數(shù)資料
| 型號(hào)： | OP-37AJG |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 運(yùn)算放大器 |
| 英文描述： | OP-AMP, 60 uV OFFSET-MAX, 63 MHz BAND WIDTH, CDIP8 |
| 封裝： | CERAMIC, DIP-8 |
| 文件頁數(shù)： | 11/24頁 |
| 文件大?。?/td> | 391K |
| 代理商： | OP-37AJG |
OP27A, OP27C, OP27E, OP27G
OP37A, OP37C, OP37E, OP37G
LOW-NOISE HIGH-SPEED PRECISION OPERATIONAL-AMPLIFIER
SLOS100C – FEBRUARY 1989 – REVISED SEPTEMBER 2000
19
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
offset voltage and drift (continued)
The circuit shown in Figure 38 measures offset voltage. This circuit can also be used as the burn-in configuration
for the OP27 and OP37 with the supply voltage increased to 20 V, R1 = R3 = 10 k
, R2 = 200 , and
AVD = 100.
15 V
+
–
–15 V
R1
50 k
R2
100
R3
50 k
VO = 1000 VIO
2
3
6
7
4
NOTE A: Resistors must have low thermoelectric potential.
Figure 38. Test Circuit for Offset Voltage and Offset Voltage Temperature Coefficient
unity gain buffer applications
The resulting output waveform, when Rf ≤ 100 and the input is driven with a fast large-signal pulse (> 1 V),
is shown in the pulsed-operation diagram in Figure 39.
+
–
Rf
Output
2.8 V/
s
OP27
Figure 39. Pulsed Operation
During the initial (fast-feedthrough-like) portion of the output waveform, the input protection diodes effectively
short the output to the input, and a current, limited only by the output short-circuit protection, is drawn by the
signal generator. When Rf ≥ 500 , the output is capable of handling the current requirements (load
current
≤ 20 mA at 10 V), the amplifier stays in its active mode, and a smooth transition occurs. When
Rf > 2 k, a pole is created with Rf and the amplifier’s input capacitance, creating additional phase shift and
reducing the phase margin. A small capacitor (20 pF to 50 pF) in parallel with Rf eliminates this problem.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| OP-37EP | OP-AMP, 60 uV OFFSET-MAX, 63 MHz BAND WIDTH, PDIP8 |
| OP-37CJG | OP-AMP, 300 uV OFFSET-MAX, 63 MHz BAND WIDTH, CDIP8 |
| OP-37GP | OP-AMP, 220 uV OFFSET-MAX, 63 MHz BAND WIDTH, PDIP8 |
| OP-47GT | OP-AMP, 220 uV OFFSET-MAX, 70 MHz BAND WIDTH, MBCY8 |
| OP-47CD/883B | OP-AMP, 300 uV OFFSET-MAX, 70 MHz BAND WIDTH, CDIP8 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| OP-37AL | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage-Feedback Operational Amplifier |
| OP37AP | 制造商:TI 制造商全稱:Texas Instruments 功能描述:LOW-NOISE HIGH-SPEED PRECISION OPERATIONAL AMPLIFIERS |
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